Landslides are different forms of larger or smaller masses of clay, snow and loose masses (rock, gravel, sand, soil) such as:
- rockslide
- rockfall
- landslide
- mudflow
- avalanche/snowslide
Landslides mean that the masses are set in motion. Landslides as a natural disaster presuppose that there are masses formed by nature itself that erupts.
There is no defined minimum limit, so rockfalls and blockfalls are considered, but it assumes that the incident is triggered suddenly.